Anchor device for construction blocks



Aug. 5, 1952 E HOLLOPETER ANCHOR DEVICE FOR CONSTRUCTION BLOCKS Filed July 28, 1950 2s 2| as NVENTOR EVERETT HOLLOPETER ATT RNEY Patented Aug. 5, 1952 dClair'hs.

This inventionpertains to an anchor forbu'ild ing blocks; and-'more fparticularlyfito ananchor having a pair-"oi? oppositelydisposedf pivotallymounted arms which are-mounted'in anelongated channel having novel means for-urging said arms toward-a fully extended position fcinseourihgfastud bolt in a hollow buildingconstructioniblock. Heretofore, expansion bolts-and anchorage-de vices have I been employed for -the=purpose of} an choring securing bolts desired positions; but

' various undesirable operational? features' wera frequently inherent" th'erein The present invention cont device for building blocks which will be simple-in construction, easily operated'i eificient in operation, and'low cost to ma'mrfactu-r'e.

A further ob'ject'of' he invn j o p ovi e? a oonstruction*blockan ho de ce which has-- means to permit autom'ati ament for;

"OFF-ice- 'liverett'lidllopetefi :9 v v wa e. (01. 85-3) -F'i'g; 5fis'fa perspective view of'one' of the gripping arm'jten'sion'spring's: .Fig. 6 is a perspectiveviewofone of the grippingarms.

Fig: 7 is" a viewshowing" the invention inactual use? 7..

R'eferring'to thedrawihgs there-is a C-shaped channel Zn-"having pair of oppositely disposed flang'es 2 'l halving a-bottom portion 2-2 -a'nda pair ofside portions 23-"wh'ich mergeinto -the"flanges 21 onthe upper portions thereof and into the emjpla-tesi and it'is" an object thereof--to provide" a-novel anchoring bottom 2-? atthe lowerp-ortions thereof.

The extreme ends of the bottom 22 are not as wide as the dimen'sions between-thesi'des 23, with the end portions terminating shoulders-2d:

Slots 25 are formed'im theifside' portions of ea'cl'i eridleaving fingers 26 =which may be bent upwardly asshown in Figs .-1 and Z'after'the grip-- ping arms 21 are positioned'therein.

centralization of the anche in device i'n relitioni to its pivotal stud bolt with spr ing actuated means-- to permit equalized. strain on 'lateral gripping arms as the deviceis activatedinte -itsefihal'fpesition. Atfurther object .of the invention is -to"-provide an: anchoring device" for I1 construction block's wherein a channelized base having pivotal-1137* mounted gripping arms-as means for automatic centralization" 'of' thedevice a'sth'elateral grip ping arms are urged -into their final position.

A further object of the invention is to provide a novel channeliz'edi anchorsfon building blocks wherein spring actuated grippingv arms tend to centralize the device by permitting lateral movement of a channelized member onethesecuring Further; and other objeotsaofzthe inventionzmay be and'may :become apparent .fl'om a perusali of thepresent disclosure,.-and. it'is;tabe understood that various; changes and. modifications may'be The gripping arms 2-l 'have'shoulders-E2 8 formed on the inner-edges thereof and are-adapted to fit into the slots Z5 so 'th'atwhen thelocking fingers 26 are bentj upwardly to hold the gripping arms 21in proper positibn,- the gripping arms maybe freely 'movabletherein! Tension spring fl is 'used'}toretain-each of the gripping arms their" -nor'mally operative posttion as shown," urged-downwardly; iii-Fig! 2 There is a slot 30 formed in eaehof the gripping arms, which slot is=longer in dimension than the :headl3'l 'ofzthe ensieri spring il, to permittheisprin'g head be inserted therethrough. A

neck 32?. of the spring has aj smaller dimension thanlthexwi'dth of the slot iiw to permit free oper ationiof tlfe gripping arms without-binding of the neck'i 2 against ath'e sides of the slot- 3%. I

The Lfoot: 33 i widei than theiwidth -of' the slot;:30i sdlitlrat wl ien the? tensionspring- 2 is placed in:theliproper position t hold "tlie"grip made in the invention. withoutidepartingafrom the spirit of' the subioinedclaimsz.

In the drawings: I Fig. 1 is a perspective View partially broken away showing the invention in its normal inoperative position.

Fig. 2 is a side view of the invention in its normal inoperative position, with the gripping arms shown dotted in its operative position.

Fig. 3 is a top view of the invention, partially broken away, in its normally inoperative position, showing the bolt in cross section.

Fig. 4 is an enlarged perspective view, shown in part, of the channelized member before the gripping arms are inserted.

ping :arms 321' im: their norma ly: operative -position,:.the tensioni spring will be retainedin place the r tensionisprin'gfisiinclined: downwardly at the free edges thereof while the foot of the tension spring 33 is parallel with, and rests flat on the upper surface of the bottom portion 22.

It will be noted that the width of the foot is slightly less in dimension than the width between the sides of the inner surfaces thereof. This is desirable since the spring foot may have a length along the edge 3-1v sufiicient to permit a slight lateral movement only, of the spring during period of time before and while the anchoring device is being inserted and manipulated through its final gripping operation in conjunction with the construction block.

locking the shoulders 28 within slots 25 without appreciable likelihood of the locking fingers 26 binding on the base. 7 I

An elongated slot 36 is of sufficient width to permit free movement of the stud bolt 31 to move laterally within the slot without frictional en-1.. gagement between the stud 31 and the sides of the. slot 36. The length of the slot 36 is sufiicient to' permit a wide latitude of movement between the stud 31 and the slot of the channel'lflliso that there will be automatic centralization. of the channel on the stud as the device is placed in po sition and is in process of being tightenedi" f j i Fig. 2 shows the side wall 38, dotted, of a construction block, with the gripping arms 21,-shown dotted, as the serrated edges 39 or teeth bite into the sides of the constructionblock; g

In operation, members of Wood 40 will have holes drilled therein to receive the studs 31. After the studs are inserted through the holes in the wood 40, the threaded portion of the studs 31 are threadedly connected'tothe secured nut 4l which fits between the sides 23, and'may loosely engage the bottom 22, when in inoperative position, but which definitely engages the underneath surface of the flanges 2| when the-stud bolt3l is tightened.

of the construction block the anchor will slide downwardly within the hollow of the construc tion block while the teeth 33 ride onthe construction block side walls; w H

After tension is placed on thestlld 3Tto urge the anchor outwardly, the serrated edges of the:

matic centralization of the anchor device in relation to the stud. we It is pointed outthatl the lower end of the stud- 31 will always emergebelow. the bottom portion 22 of the anchor so thatthe length of the sl t 6. y a ement with the stud .31 will act as a limiting meansfor restrictinglth lateral movement of the nut 31 within the channel 20.:

What is claimed asnew and. desired to. be secured by Letters Patent of the United States is: r

1. An anchor ofthe ,class describedhaving a channel consisting of a basehavingan elongated Due to the width of-thegripping a en, when the anchor is placed within the hollow portion 42 V slot therein, a pair of sides secured on said base, and a flange formed on each edge of said channel, a pair of locking fingers formed on each end of said channel, a pair of gripping arms each having an aperture formed therein, a pair of shoulders on each of said gripping arms adapted to be pivotally mounted on said channel and held thereto by said locking fingers, and means formed on the outer edge of each of said gripping arms adapted to engage the wall of a construction lblock; tension means adapted to be inserted through the aperture in each of the gripping arms and adapted to engage the channel for urging said gripping arms to an operative position, a nut ,slidably..mo'unted within the channel, and a threaded,studconnectable to said nut and extending through the base slot, 1

2. An anchor of the class described having a channel consisting of a base having an elongated slot therein, a -.pair ,ofsidessecured on said base, and a fiangeformed oneach of. said side s;

a pair of locking-fingersjformedron each end of said channel, a pair ofgrippingarms each having an aperture formed thereifi a pair of shoulders on each of said gripping arms adapted to'be pivotally mounted on said channel and held thereto by said locking fingers, and means formed on the outer edge of each {of saidfgripping arms and adapted to engage the channel for urging said gripping arms to an operative'position, stud securing means slidably mounted within th channel, and stud means. connectable, to-said stud securing means and extending through the base slot.

- 3. An anchor device-h y ng a channel with an aperture therein, a nut slidably mounted in said channel, a gripping arm piyotallymounted on each endof said.phanneh resilient means for holding said gripping-arms i n a- "normal operative position, and a threaded stud; insertable in said nut and extendablethrough said aperture."

4. An anchor devicehaving,aC-shaped. chan-.

' nel with a slotformedfthereinya nut 'slidably mounted in said C-shaped channel, a gripping arm pivotally mounted on each end of said channel, resilient meansfor holding said gripping arms in'a normal operative position, and means connectable tosaid nut and protruding through said aperturefor operating said gripping means.

- EVERET,T HOLLOPETER;

.iiimsimctsebmnz The following references 'areoffrecordin the file of thiste A UNITED' STATES PATENTS Number... ::..'Name' -Date 526,088 Savill S ep't.-'l'81894 1,247,621 Bennett "Novi27jl9l7" 1,373,645 .IBandoly Apr s; 1921- 1,820,667 Leyes' Aug; 25 I931 2,428,381 Parry Oct- 7; 1947 

